Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / net / ipv4 / ipmr.c

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 717ab7d..85893ee 100644 (file)
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -28,7 +28,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <linux/types.h>
@@ -1462,7 +1461,6 @@ int pim_rcv_v1(struct sk_buff * skb)
        skb_pull(skb, (u8*)encap - skb->data);
        skb->nh.iph = (struct iphdr *)skb->data;
        skb->dev = reg_dev;
-       memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
        skb->protocol = htons(ETH_P_IP);
        skb->ip_summed = 0;
        skb->pkt_type = PACKET_HOST;
@@ -1518,7 +1516,6 @@ static int pim_rcv(struct sk_buff * skb)
        skb_pull(skb, (u8*)encap - skb->data);
        skb->nh.iph = (struct iphdr *)skb->data;
        skb->dev = reg_dev;
-       memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options));
        skb->protocol = htons(ETH_P_IP);
        skb->ip_summed = 0;
        skb->pkt_type = PACKET_HOST;
@@ -1581,6 +1578,7 @@ int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait)
        cache = ipmr_cache_find(rt->rt_src, rt->rt_dst);
 
        if (cache==NULL) {
+               struct sk_buff *skb2;
                struct net_device *dev;
                int vif;
 
@@ -1594,12 +1592,18 @@ int ipmr_get_route(struct sk_buff *skb, struct rtmsg *rtm, int nowait)
                        read_unlock(&mrt_lock);
                        return -ENODEV;
                }
-               skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
-               skb->nh.iph->ihl = sizeof(struct iphdr)>>2;
-               skb->nh.iph->saddr = rt->rt_src;
-               skb->nh.iph->daddr = rt->rt_dst;
-               skb->nh.iph->version = 0;
-               err = ipmr_cache_unresolved(vif, skb);
+               skb2 = skb_clone(skb, GFP_ATOMIC);
+               if (!skb2) {
+                       read_unlock(&mrt_lock);
+                       return -ENOMEM;
+               }
+
+               skb2->nh.raw = skb_push(skb2, sizeof(struct iphdr));
+               skb2->nh.iph->ihl = sizeof(struct iphdr)>>2;
+               skb2->nh.iph->saddr = rt->rt_src;
+               skb2->nh.iph->daddr = rt->rt_dst;
+               skb2->nh.iph->version = 0;
+               err = ipmr_cache_unresolved(vif, skb2);
                read_unlock(&mrt_lock);
                return err;
        }